Seth winslow



' tluitnl SETH -WINSL OW, OF CHARLESTOWN, MASSACHUSETTS.

Leners Para: No. 85,980,- dad .huma/ry 19, 1869.

IIMIIPIROVElD SPRING-BED BOTTOM To all ughom it ma/y conce/m Be it known that I, SETH WINsLoW, of Charlestown, in the county of Middlesex, and State of Massachusetts, have invented an Improved Spring for Bed-Bottoms.; and do hereby declare the following to be a full, clear, and exact description thereof, reference beinghad to the accompanying drawings, in which-- Figure l represents a bed-bottom with my improved spring.

Figure 2 is a perspective view of my spring detached.

The object of this 'invention is to produce a cheap, durable, and easy spring-bed bottom, and one easily constructed. y

. The nature of my invention consists in using a steel spring, placed under each end of the slats to a bedbottom, at such distances apart as will present an even surface at all times; and, by this construction, to allow of the slats extending the whole length of the bed,

thereby avoiding sagging at each end.

rlfhe principal feature of my bed-bottom is the construction ofthe spring, somewhat in the form of the letter M, with projecting curved arms, which, when depressed, cause the central folds to open, thereby triplicating its elasticity.

In the drawings- A A are ordinary slats, running lengthwise with the bed;

'B B are side-rails;

0 @cross-bars; and,

Dl is the spring.

The spring Dis made of fiat steel, and bent, so as to give the projection E. This formation serves as a double spring; that is, by` it I secure three distinct springs combined in one,` and this gives suicient elasticity, while Iam able to use a spring heavy enough to give durability. 4

In using an ordinary half-elliptic spring, one suiciently durable does not possess enough elasticity. I overcome this by the peculiar constnnction shown.

The method of attaching these springs is old, and not part of my invention. The arrangement of slats, cross-bars, and side-rails, is also old and well known, as well as placing springs at a distance from the ends, but the construction of the spring itself is entirely new, while all the other parts shown are old.

What I claim, then, as my invention, and desire to vsecure by Letters Patent, is

The spring D E, in combination with slats A A, rails B B, and cross-bars C C, substantially as and for the purposes set forth.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing wit- IICSSES.

- SETH WINSLOW. Witnesses:

CARROLL D. WRIGHT, M. S. G. WILBE. 

